package com.cy.aspect;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.stereotype.Component;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

@Aspect
@Component
public class CacheAspect {
    private Map<String,Object> cache = new ConcurrentHashMap<>();

    @Pointcut("bean(moduleServiceImpl)")
    public void doCache(){}

    @Around("doCache()")
    public Object aroud(ProceedingJoinPoint joinPoint) throws Throwable{
        Object obj = cache.get("username");
        if(obj!=null) return obj;
        obj = joinPoint.proceed();
        cache.put("username",obj);
        return obj;
    }
}
